Please explain. Thank you.

A regression was run to determine if there is a relationship between hours of TV watched per day {x} and number of situps a person can do {3:}. The results of the regression were: y=ax+b a=-B . ES b=23 . 37"4 #:9351134 r=-e.928 Use this to predict the number of situps a person who watches 14 hours of W can do {to one decimal place] :1 Based on the data shown below, calculate the correlation coefficient {rounded to three decimal places}